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Battery Laboratory Q&A VOL.005: Which technology produces better cell performance, stacking process or winding process?

2025-09-09

There is no absolute "better" between the stacking process and the winding process; each has its own technical characteristics and suits different battery demand scenarios. The core differences lie in structural design, performance, and mass production features. Winding is an efficient standardized production of "one-roll forming," while stacking is a precise customized process of "layer-by-layer stacking." Wuhan Chaodian Technology compares and analyzes the differences between the stacking and winding processes from the following dimensions.

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Battery Laboratory Q&A VOL.004: What causes the voltage of assembled lithium-ion button batteries to be abnormally low?

2025-09-08

Each step of assembling the button cell may hide "invisible pitfalls" that cause low voltage. You can follow the low voltage troubleshooting mind map organized by Super Battery Technology, breaking down the entire process of button cell assembly, and inspect the issues of abnormally low voltage in button cells step-by-step through the four stages: "Material Preprocessing → Electrode Sheet Preparation → Assembly Operation → Post-processing."

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Battery Laboratory Q&A VOL.003: Why do pouch batteries require a secondary sealing process while others do not?

2025-09-08

Why do pouch batteries require a secondary packaging process while others do not? The core purpose of secondary packaging is to extract gases generated during the pre-formation stage, seal potential gaps from the primary packaging, and enhance the vacuum inside the cell, allowing the electrode plates and separator to adhere more tightly. Cylindrical and prismatic batteries do not require this process due to their rigid outer shells.

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Battery Lab Q&A VOL.002: Which process steps require thickness measurement in lithium battery R&D and mass production?

2025-07-22

Wuhan Chaodian Technology's [Battery Lab Q&A Column] focuses on fundamental lithium battery technology, regularly dissecting R&D challenges, answering industry questions, and providing valuable lithium battery technology insights to help electrochemical engineering students and battery R&D engineers get started efficiently!

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Battery Lab Q&A VOL.001: Why is copper foil used for the negative electrode and aluminum foil for the positive electrode in lithium batteries?

2025-07-18

Fundamental Research and Development Technology of Lithium Batteries: Why is copper foil used for the negative electrode and aluminum foil for the positive electrode in lithium batteries? Wuhan Chaodian Technology's [Battery Lab Q&A Column] focuses on fundamental lithium battery technology, regularly dissects R&D challenges, answers industry questions, and outputs practical lithium battery technology to help electrochemical engineering students and battery R&D engineers get started efficiently!

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